3H have been investigating and comparing rocks based on their properties. We started by noticing the properties of the rocks and using words like hard, smooth, dull or rough to describe them. Then we used a Venn diagram to compare two rocks and wrote down the similarities and differences.

In the next lesson we introduced the terms permeable and impermeable. We experimented by placing the rocks in water and tested them to see if they released air. If the bubbles appeared it showed us that the rock was permeable because they have spaces on the inside that run all the way through the rock. This can trap air bubbles. If there was no bubbles, the rock was impermeable.

We have been fantastic investigators!